/Engine/Source/Runtime/SignalProcessing/Public/DSP/BufferOnePoleLPF.h
Process InSamples and place filtered audio in OutSamples.
void ProcessAudio ( const [FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & InSamples, [FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & OutSamples )